Synthesis of Orthorhombic Tin Dioxide Nanowires in Track Templates.

Electrochemical deposition into a prepared SiO 2 /Si-p ion track template was used to make orthorhombic SnO 2 vertical nanowires (NWs) for this study. As a result, a SnO 2 -NWs/SiO 2 /Si nanoheterostructure with an orthorhombic crystal structure of SnO 2 nanowires was obtained. Photoluminescence excited by light with a wavelength of 240 nm has a low intensity, arising mainly due to defects such as oxygen vacancies and interstitial tin or tin with damaged bonds. The current-voltage characteristic measurement showed that the SnO 2 -NWs/SiO 2 /Si nanoheterostructure made this way has many p-n junctions.